<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
        .grid-box {
            display: grid;
            grid-template-columns: 50px 50px 50px 50px;
            grid-template-rows: 50px 50px 50px 50px;
        }
        .item1 {
            grid-column: 1/3;
            grid-row: 1/3;
            background-color: #fac;
        }
        .item2 {
            background-color: #cfa;
            grid-column: 3/5;
            grid-row: 2/5;
        }
    </style>
  </head>
  <body>
    <div class="grid-box">
        <div class="item1">1</div>
        <div class="item2">2</div>
    </div>
  </body>
</html>

